Kenya's Wilson Kipsang set a new world record this past weekend at the Berlin Marathon, finishing the race in 2:03:23. But shaving off another three or so minutes would take a superhuman effort, even for a superhuman runner like Kipsang.

Security for London's marathon this Sunday will be exceptionally tight, says retired police commander Bob Broadhurst. He was in charge of the police operation for London's 2012 Olympic and paralympic games.

Kenya's Wilson Kipsang set a new world record this past weekend at the Berlin Marathon, finishing the race in 2:03:23. But shaving off another three or so minutes would take a superhuman effort, even for a superhuman runner like Kipsang.

Security for London's marathon this Sunday will be exceptionally tight, says retired police commander Bob Broadhurst. He was in charge of the police operation for London's 2012 Olympic and paralympic games.

Kenya's Wilson Kipsang set a new world record this past weekend at the Berlin Marathon, finishing the race in 2:03:23. But shaving off another three or so minutes would take a superhuman effort, even for a superhuman runner like Kipsang.

Security for London's marathon this Sunday will be exceptionally tight, says retired police commander Bob Broadhurst. He was in charge of the police operation for London's 2012 Olympic and paralympic games.